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Undefined symbols for architecture x86_64:
"_OBJC_CLASS_$_QNUploadManager", referenced from:
objc-class-ref in InpidualCenterController.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
伊谢尔伦2017-04-17 17:20:11
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http://blog.csdn.net/sunyuanyang625/article/details/17097085